A4 Vertaisarvioitu artikkeli konferenssijulkaisussa
The role of LoBALs in quasar evolution
Tekijät: Wethers Clare, Kotilainen Jari, Schramm Malte, Schulze Andreas
Toimittaja: Mirjana Pović, Paola Marziani, Josefa Masegosa, Hagai Netzer, Seblu H. Negu, Solomon B. Tessema
Konferenssin vakiintunut nimi: Symposium of the International Astronomical Union
Kustantaja: Cambridge University Press
Julkaisuvuosi: 2021
Journal: Proceedings of the International Astronomical Union
Kokoomateoksen nimi: Nuclear Activity in Galaxies Across Cosmic Time
Tietokannassa oleva lehden nimi: Proceedings of the International Astronomical Union
Sarjan nimi: Proceedings of the International Astronomical Union
Numero sarjassa: S356
Vuosikerta: 15
Aloitussivu: 285
Lopetussivu: 289
ISSN: 1743-9213
DOI: https://doi.org/10.1017/S1743921320003117
Broad absorption line quasars (BALs) represent an interesting yet poorly understood population of quasars showing direct evidence for feedback processes via powerful outflows. Whilst an orientation model appears sufficient in explaining the sub-population of high-ionisation BALs (HiBALs), low-ionisation BALs (LoBALs) may instead represent an evolutionary phase, in which LoBALs exist in a short-lived phase following a merger-driven starburst. Throughout this work, we test this evolutionary picture of LoBALs by comparing the FIR detection rates, SFRs and environments for a sample of 12 LoBALs to other quasar populations at 2.0 < z < 2.5, making use of archival Herschel SPIRE data. We find the LoBAL detection rate to exceed that of both HiBALs and non-BALs, indicating a potential enhancement in their SFRs. Indeed, we also find direct evidence for high SFRs (>750 M ¯yr-1) within our sample which may be consistent with an evolutionary paradigm.